1,464 problems · Solve with AI-powered hints & explanations
| # | Title | Difficulty |
|---|---|---|
| 673 | Number of Longest Increasing Subsequence | Medium |
| 676 | Implement Magic Dictionary | Medium |
| 677 | Map Sum Pairs |
Page 7 of 30
| Medium |
| 678 | Valid Parenthesis String | Medium |
| 684 | Redundant Connection | Medium |
| 686 | Repeated String Match | Medium |
| 687 | Longest Univalue Path | Medium |
| 688 | Knight Probability in Chessboard | Medium |
| 690 | Employee Importance | Medium |
| 692 | Top K Frequent Words | Medium |
| 695 | Max Area of Island | Medium |
| 698 | Partition to K Equal Sum Subsets | Medium |
| 701 | Insert into a Binary Search Tree | Medium |
| 707 | Design Linked List | Medium |
| 712 | Minimum ASCII Delete Sum for Two Strings | Medium |
| 713 | Subarray Product Less Than K | Medium |
| 714 | Best Time to Buy and Sell Stock with Transaction Fee | Medium |
| 718 | Maximum Length of Repeated Subarray | Medium |
| 720 | Longest Word in Dictionary | Medium |
| 721 | Accounts Merge | Medium |
| 722 | Remove Comments | Medium |
| 725 | Split Linked List in Parts | Medium |
| 729 | My Calendar I | Medium |
| 731 | My Calendar II | Medium |
| 735 | Asteroid Collision | Medium |
| 738 | Monotone Increasing Digits | Medium |
| 739 | Daily Temperatures | Medium |
| 740 | Delete and Earn | Medium |
| 743 | Network Delay Time | Medium |
| 752 | Open the Lock | Medium |
| 754 | Reach a Number | Medium |
| 756 | Pyramid Transition Matrix | Medium |
| 763 | Partition Labels | Medium |
| 764 | Largest Plus Sign | Medium |
| 767 | Reorganize String | Medium |
| 769 | Max Chunks To Make Sorted | Medium |
| 775 | Global and Local Inversions | Medium |
| 777 | Swap Adjacent in LR String | Medium |
| 779 | K-th Symbol in Grammar | Medium |
| 781 | Rabbits in Forest | Medium |
| 784 | Letter Case Permutation | Medium |
| 785 | Is Graph Bipartite? | Medium |
| 786 | K-th Smallest Prime Fraction | Medium |
| 787 | Cheapest Flights Within K Stops | Medium |
| 788 | Rotated Digits | Medium |
| 789 | Escape The Ghosts | Medium |
| 790 | Domino and Tromino Tiling | Medium |
| 791 | Custom Sort String | Medium |
| 792 | Number of Matching Subsequences | Medium |
| 794 | Valid Tic-Tac-Toe State | Medium |
© 2026 PhantomCodeAI. All rights reserved.